In case you don't want to watch a 10 minute youtube video:
The basic idea of a roof-mounted charger seems like a good one. But I don't understand the lack of cable. Do all EV owners in Europe carry around a Mennekes extension cable of some sort?

The basic idea of a roof-mounted charger seems like a good one. But I don't understand the lack of cable. Do all EV owners in Europe carry around a Mennekes extension cable of some sort?